What is the air quality trend in Little Rock?

Over the past 8 days, Little Rock had an average AQI of 74 based on station measurements. The worst day was 2026-07-16 with AQI 122.

How is Little Rock air quality measured?

Air quality in Little Rock is measured by ground-level monitoring stations that report PM2.5 and PM10 concentrations hourly. CERNS.IO aggregates readings from nearby stations and converts PM2.5 to the US EPA Air Quality Index (AQI) scale.

Air Quality History for Little Rock, United States

Name: Little Rock Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near Little Rock, United States.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

135h

PM2.5 Station

135h · 2 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-21	47	20–63	12.2 µg/m³	10h	2
2026-07-20	72	43–121	22.0 µg/m³	16h	2
2026-07-19	85	44–156	28.2 µg/m³	21h	1
2026-07-18	75	35–158	25.5 µg/m³	20h	2
2026-07-17	97	18–480	56.5 µg/m³	22h	2
2026-07-16	122	25–314	71.3 µg/m³	23h	2
2026-07-15	55	31–211	19.4 µg/m³	21h	2
2026-07-14	42	38–45	9.9 µg/m³	2h	2

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